From: noble.yang Date: Thu, 31 Jul 2025 11:06:14 +0000 (+0800) Subject: ALSA: usb-audio: Add DSD support for Comtrue USB Audio device X-Git-Tag: v6.1.155~61 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d926dd23d18bee1e360e879d764f267c13d0b558;p=thirdparty%2Fkernel%2Fstable.git ALSA: usb-audio: Add DSD support for Comtrue USB Audio device [ Upstream commit e9df1755485dd90a89656e8a21ec4d71c909fa30 ] The vendor Comtrue Inc. (0x2fc6) produces USB audio chipsets like the CT7601 which are capable of Native DSD playback. This patch adds QUIRK_FLAG_DSD_RAW for Comtrue (VID 0x2fc6), which enables native DSD playback (DSD_U32_LE) on their USB Audio device. This has been verified under Ubuntu 25.04 with JRiver. Signed-off-by: noble.yang Link: https://patch.msgid.link/20250731110614.4070-1-noble228@gmail.com Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index ac43bdf6e9ca6..d4f4466b028c8 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -2303,6 +2303,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { QUIRK_FLAG_DSD_RAW), VENDOR_FLG(0x2d87, /* Cayin device */ QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x2fc6, /* Comture-inc devices */ + QUIRK_FLAG_DSD_RAW), VENDOR_FLG(0x3336, /* HEM devices */ QUIRK_FLAG_DSD_RAW), VENDOR_FLG(0x3353, /* Khadas devices */